Enforce constant size and device scale factor for surfaces

cc/test/test_compositor_frame_sink.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_TEST_COMPOSITOR_FRAME_SINK_H_
 #define CC_TEST_TEST_COMPOSITOR_FRAME_SINK_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "cc/output/compositor_frame_sink.h"
@@ skipping 69 matching lines @@
   void SetLocalSurfaceId(const LocalSurfaceId& local_surface_id) override;
   void SubmitCompositorFrame(CompositorFrame frame) override;
 
   // CompositorFrameSinkSupportClient implementation.
   void DidReceiveCompositorFrameAck(
       const ReturnedResourceArray& resources) override;
   void OnBeginFrame(const BeginFrameArgs& args) override;
   void ReclaimResources(const ReturnedResourceArray& resources) override;
   void WillDrawSurface(const LocalSurfaceId& local_surface_id,
                        const gfx::Rect& damage_rect) override;
+  void DidRejectCompositorFrame() override;
 
   // DisplayClient implementation.
   void DisplayOutputSurfaceLost() override;
   void DisplayWillDrawAndSwap(bool will_draw_and_swap,
                               const RenderPassList& render_passes) override;
   void DisplayDidDrawAndSwap() override;
 
  private:
   // ExternalBeginFrameSource implementation.
   void OnNeedsBeginFrames(bool needs_begin_frames) override;
   void OnDidFinishFrame(const BeginFrameAck& ack) override;
 
   void SendCompositorFrameAckToClient();
 
   const bool synchronous_composite_;
   const bool disable_display_vsync_;
   const RendererSettings renderer_settings_;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   FrameSinkId frame_sink_id_;
   // TODO(danakj): These don't need to be stored in unique_ptrs when
   // CompositorFrameSink is owned/destroyed on the compositor thread.
   std::unique_ptr<SurfaceManager> surface_manager_;
   std::unique_ptr<LocalSurfaceIdAllocator> local_surface_id_allocator_;
-  LocalSurfaceId delegated_local_surface_id_;
+  LocalSurfaceId local_surface_id_;
+  gfx::Size display_size_;
+  float device_scale_factor_ = 0;
 
   // Uses surface_manager_.
   std::unique_ptr<CompositorFrameSinkSupport> support_;
 
   std::unique_ptr<SyntheticBeginFrameSource> begin_frame_source_;
   ExternalBeginFrameSource external_begin_frame_source_;
 
   // Uses surface_manager_ and begin_frame_source_.
   std::unique_ptr<Display> display_;
 
   TestCompositorFrameSinkClient* test_client_ = nullptr;
   gfx::Size enlarge_pass_texture_amount_;
 
   std::vector<std::unique_ptr<CopyOutputRequest>> copy_requests_;
 
   base::WeakPtrFactory<TestCompositorFrameSink> weak_ptr_factory_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_TEST_COMPOSITOR_FRAME_SINK_H_